Mode-locked InGaAs-AlGaAs disk laser generating sub-200-fs pulses, pulse picking and amplification by a tapered diode amplifier

Almost chirp-free pulses with a duration of 190 fs were achieved from a mode-locked semiconductor disk laser (SDL) emitting at approximately 1045 nm. Pulse shaping was different from the soliton-like mode-locking process known from lasers using dielectric gain media; passive amplitude modulation pro...

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Bibliographic Details
Published in:Optics express 2009-06, Vol.17 (13), p.10820-10834
Main Authors: Klopp, Peter, Griebner, Uwe, Zorn, Martin, Klehr, Andreas, Liero, Armin, Weyers, Markus, Erbert, Götz
Format: Article
Language:English
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Summary:Almost chirp-free pulses with a duration of 190 fs were achieved from a mode-locked semiconductor disk laser (SDL) emitting at approximately 1045 nm. Pulse shaping was different from the soliton-like mode-locking process known from lasers using dielectric gain media; passive amplitude modulation provided by a fast saturable absorber was essential. The spectrum of the absorber had to be matched to the gain spectrum within a few nm. A tapered diode amplifier was demonstrated to be a device for both picking and amplifying SDL pulses. The pulse repetition rate of the SDL output was reduced from 3 GHz to 47 MHz.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.17.010820